Wall form



M. S. HOTCHKISS June 8 WALL FORM Filed Nov. 23, 1925 TOR Herc/ M55 Patented June 8, 1926.

MARK S. HOFLCHKISS, OF JOHNSON GITY, NEW YORK.

' WALL FORM.

Application filed November/23, 1925. Serial Ila-70,816.

My invention relates to a form used in the construction of concrete walls for buildings, supports and other purposes.

The principal object of my invention is to construct a steel form for-concrete construction work which is completely standardized as regards its parts, which is quickly and easily assembledand disassembled, and which forms a rigid, lateral, and vertical support for the pouring of concrete or other building material. 7

Another object is to providea one piece plate or panel form unit, flanged on all sides so as to make it readily engageable with and removable from suitable supporting members in the building up of the desired forms.

A still further object is to provide a new type of corner construction for forms which may be readily assembled or removed and which in ures accurate and properly aligned corners in concrete wall building.

Another object is to provide a novel means of support for rigidly holding the plate forms in their assembled position.

A further object is to provide a new tie.

rod for spacing the inner and outer walls of the forms, and for holding them against buckling or distortion.

Another object is to provide means at the juncture of adjacent plate forms for locking the tie rods against unauthorized displacement. I

Still another object is to provide an adjustable brace for reinforcing the form and for bringing the same into proper alignment.

Another object is to provide the supporting members of the wall forms with means for securing a scaffolding thereto.

A further and important object is to provide the interconnecting parts of the wall form with ingenious connection means which not only secure the connected parts in proper relation, but which may also be easily and readily detached when it is desired to dismantle the form.

One further object is to provide means whereby the form may be carried upwardly to any desired height, the same being at all times properly braced and sufiiciently strong to withstand the shocks and pressures placed upon it. I

Other objects and advantages in details of construction and operation will be apparent as the description proceeds. reference being had to the accompanying drawing wherein like reference numerals in dicate like parts.

In the draw1ng: Figure 1 1s a perspective view showing a section of my improved wall form in as senibled position.

Figure 2 is a cross sectional plan view showing clearly the relation between the form plate and the supporting members when assembled, and also illustrating the method of locking the tie rods in position.

Figures 3 andt illustrate the method of removing the form plate from the supporting members by pivoting the plate in relation to the said members instead of sliding the same outwardly over. the endof the 2LCl1LCGIlt supporting members. Figure 5 is a detail sectional View of the inside corner of my improved form.

Figure 6 is similar to Figure 5, and illustrates the outside corner of the form.

Figure? isv a side view from the left in Figure 6 showing the flange construction of the corner plate.

Figure 8, is similar to Figure 7 taken from the right in Figure 6.

Figure 9 is a detail partly in section illustrating clearly my improved tie rod and its connection with the supporting members.

Figure 10 is a side view of the supporting member showing the key-hold attaching means provided for the tie rod.

Figure 11 is a modified form of tie rod. Figure 12 is a detail partly in section illustrating clearly the means of connection between the form plate and the supporting member's.

Figure 13 is a detail, partly in section, illustrating the means, of attaching the hori zontal supportingbar, which may be used as a. scaliolding support, to the supporting member.

Figure 14 is a detail plan view of one end of the horizontal brace member.

Figure 15 illustrates in detail the adjust-able brace rod for the supporting members.

Figure 16 is a detail showing the method being of connection between the adjustable brace rodand the supporting member.

Figure 17 1s a deta1l showing the lower means. i The reference numeral 1 indicates a foot ing or foundation of concrete or other material of suitable thickness, width and strength for supporting the walls to be con structed thereon. Mounted in upright position and at suitably spaced intervals upon the base 1, are the supporting members or bars 2. These supporting bars are mounted in'spa ced relation for both the inner and outer forms for the proposed wall, the inner and outer bars being directly opposite one another.

The supporting bars are preferably made out of heavy sheet metal, cold rolled or otherwise pressed in the form of channel bars having their channel portion 3 facing inwardly and having their inner edges bent outwardly to form laterally projecting flanges 4 on either side. The flanges 4 lie in the same flat plane and are parallel with the flat surface of the channel 3.

The opposing supporting bars '2 are secured together in spaced relation and held against inward or outward displacement by means of tie rods 5, which are preferably of flat steel, and which are provided at each end with notches 6. Each supporting bar 2 is provided at spaced intervals throughout its length, with key notches or openings 7, elongated laterally as shown clearly in Figure 10 through which the end of the tie rods,

5 may pass when inserted fiatwise. After the tie rods have been inserted in this manner and are again turned to the vertical position as shown in Figure 9, it will be seenthat the supporting members 2 are secured together and against inward or outward movement with respect to the plane of the lower edge of the theinner or outer walls of the forms. As shown in Figure 11, the tie rods 5 may be modified by providing each end with a single notch 6 which may be hooked over key slot 7 in the supporting bar. I

The adjacent, upright supporting bars 2, lying in the same plane, form guides for receiving the adjacent ends of panels'or plates 8, and holding the latter against inward or outward displacement in the manner about to be described. The plate or panels 8 are uniform in size and arepreferably of heavy steel or other material and are provided at their ends with flanges, bent first outwardly at right angles as at 9, then inwardly at right angles as at 10, thus forming channels at each end of the panel. As shown clearly in Figures 3 and 4, the channels thus formed engage over the flanges a of the supporting bar 2, and lie within the channel 3 of the supporting bar. The sides 9 of the adjacent panels are thus brought closely together within the channel 3, and between these surfaces of the panels 8 are brought substantially edge to edge in the same flat plane, thus presenting a practically continuous smooth surface on either side of the form between which the concrete or other building material may be poured.

The panels 11, which make up the cor- 'ners of the wall form, are constructed at one end in the manner just described, that is with the flanges 9 and 10 for engagement within the channels 30f the adjacent supporting bars 2; The opposite ends of these corner panels 11, however, are formed for engagement with each other as follows: Referring particularly to Figures 1, 5, 6, 7 and 8, it will be noted that the left hand panel 11 is provided at one end with a large central flange 12 turned at right angles to the body of the plate 11 for overlapping the adjacent end of the right hand panel 11. The right hand panel 11 is providedat one end on the top and bottom thereof, with flanges 13 turned at right angles to the body of the panel for overlapping engagement with the adjacent end of the left hand corner panel, and on opposite sides of the flange 12. The adjacent corner panels ma be quickly and easily assembled by fol ing them inwardly towards each otherand at right angles to each other and provide a sharply defined corner for the walls. Due to the close fit of these interconnecting panels, a substantially unbroken form for this corner is provided. It will be understood also that if other than a right angled corner is desired, the angle of the flanges 12 and 13 may be changed to suit.

Referring again to the panel 8, it will be noted that the upper and lower edges thereof are turned outwardly at right angles to form the flanges 14-, which form supports for each panel and for the next adjacent panel above, which rests upon it. The end of the flanges 1 terminate just short of the edge on the back turned flange 10 at the end'of the panels. The ends of the flanges 1ft are also cut away slightly adjacent the wall of the panel as at 15. This cut away portion 15, and the space between the ends of the flanges 1 and the flanges 10, provide space for receiving the side walls. or the upport ng bar .2 a d. he.

fiangesAthereof. From this construction,

it will be. observe that n assembling he wall form, the panel-made may be slipped; over the upper end of the supporting bars,

2-, the ends of theflanges 14 engaging with the flanges lofthe',supportingbars andthe flanges 9 and :10 ofthepanels assum panel after another inserted in this manner, thusbuilding up thewallabypanels between, the adjacent. supporting bars; It

will-bealso noted that asthepanels are,

thus slipped: into .place, the tie rods are automatically locked in securing posit on.

The corner. panels 11 are provided} with thefflanges' .14 also, attheirflup'per and low er sides, one end of said =flngesbeing formed with the cut out portionc15, asbefore described, but the oppositeend-thereofadjacent thecorner isleft square.

Although fromv the" foregoing description, it. is. apparent. that the panels 8 may be readily slippedup ordownion the sup:

' porting. bars 4; to assemble. orjdismantle the forms, it will also be. apparent fromEigures 3 and. tthat time maybesaved in dlsmantlingi the forinby simply pivotingthe panels 8 outwardlyf and. thus disengaging them from the adjacent support 2. The cutout portion 15 on theLfiangel l ismadeat such an angle, and with. rounded corners, as 'to permit/disconnection between the. panels 8 and the supporting bars, 2111 this, manner. It will be understood, of. course, that before this canbe done, one of the. upright, or supporting bars 2vmust be removed. The construction just described facilitates the, dismantling'of thelpartscof the wall form which may then be taken. toanother part of the construction, or to another job. for use over again.

It will be observed-thatv all of the flanges on thevarious panels makingup this wall form, are turned outwardly or away, from the space between the forms into which the concrete is poured. Thus theinner. surfaces of the form presented issubstantially. unbroken smooth surface for formingthe con; crete wall. i

Bracing means is provided for. the wall form to prevent its buckling or bulging outs wardly or otherwisebecomingdistorted, or outof alignment. This bracing means includes an adjustable brace rod in two sections15 and 16, one telescoping within the other. Each section is preferably made of channel iron or steel, and the sections may be adjusted longitudinally with respect to each other, by a pin and. slot connection 17 the pins thereof beingv provided. with w ng nutsorother suitable means for rigid,-

ly securing. the sections in adjusted position. This adjustablel feature permits the I brace to adapt itself 1 to variations in the level .or contourjo fut he ground adjacent 'the' wall, and provides for i a uniform br ajcing o f 7Q the wall .througho it ,iits length.

The npperjend of thebrace rod member 16," is providedwith an integral centrally twistednose member 18 for v i nsertion within a vertically arranged keyf hoIe, slot," 19', in:

the supporting barQ.

From this construction, it ,will beseei that the vbrace rod maybe turned upon its side:

and theend 18 thereof inserted in the slot 19, whereupon the brace be backto its.normal-position, thus securing the same with relation to the i'ipright sup porting member 2. The lower entree the brace memberis provided withan outwardly turned. foot, 20 provided with a stake 5, opening 21 through which the stake 32 driven into the ground for' securing the brace in properv position It will be noted that the font 20 isalso provided with additional openings 23, which maybe used;

in case the brace is resting upon woodlor other material wherein, screws instead" of stake are necessary for securingthe, brace in, position. This bi'ace member is alLmetal in construction and quickly and easily assembled and dismantled-together with the rest of the metalwalbform. i

In practice, it is advisable to place the key-hole. slot 19 for the reception or, the

brace member at intervals throughoutthe 1 9 length of the supportingbars 2. This per mits the use foflonger or shorter brace :rods as desiredorboth if itf isnecessary because of peculiar working conditions. i

It will be notedthat the length of the 10:; I

supporting bars 2 is such that the top set of panels whicl'1; are engaged therewith exe d tly hovet e or h airporting bars. Thisconstructionpermits af'sec- 0nd tier or story of supporting b S to be placedend to end;upon thel'ower one, and the wall form then built on up in the same manner as herein indicated, and described, ahighas ispracticable. i

At the point ofconnection, between such 11b upper andlower layersof supporting bare, it, will. be noted that the panels adjacent such intersection or 7' end to end connection overlap on the adjacent supportingbarsand thusreinforce them. In such eventfthe brace I40 bars 15. and 16 would of: course be' 'niuch longer than the one; indicated in order to reach from the top supporting rod' to the v ground. construction hasnot been il lustrated in View of the fact that a 1 2 5 mere duplicatien of. the parts. herein shown and described' afnd is'jbelievedj'to' be clear without such duplication. 1

The, uprightfbars are; also provided at intervals threughout their length with 13 and 14. The outer ,end of the brace bar 25, which extends horizontally outwardly from the wall forms, may be ad ustably and rigidly secured. to an upright brace 26,

whereby additional support for the wall forms is provided. It will be noted with reference to Figure 1 that this construction also provides a'support for scaffolding 27, which may be built up as high as the wall forms are constructed. The brace rod 25 is preferably of channel steel or iron, and as shown is as easily and quickly assembled or dismantled as is the rest of the units which make up this wall form.

'From the foregoing, it will be seen that l have provided asection, metal form, preferably of steel, for use in the construction of walls, and which may be assembled and built up in any desired shape or formation, which is adequately braced at regular intervals with metal units which form part of the wall construction, the entire form being quickly and readily assembled without the use of any wooden parts or of nails or screws, and which may be both assembled and dismantled by an inexperienced workman. The facility with which a wall form of this kind can be built up will be readily understood by those skilled in the art. Time, labor, and materials are saved in large measure, and accuracy of alignment is insured. The majority of the parts making up the form are interchangeablaand may be used over and over again in construction work. The various parts when assembled are adequately locked against accidental dislacement, the value of which is obvious. Most of the parts, particularly the bars and the panels, are so constructed that they may be'easily and conveniently packed together for easy transportation.

While I have shown the preferred embodiment of my invention herein, I do not wish to be limited to'the exact'construction shown and described, other than by the appended claims, as it willbe apparent that many changes in details of construction and operation maybe madewithout departing from the spirit and scope of the invention. 7 I claim Y l. A wall form comprising an upright supporting bar having a channel and lateral flanges, a panel provided with vertical and horizontal flanges, one of said vertical flanges engaging within said channel and said horizontal flanges engaging one or" said lateral flanges, whereby said panel is re 7 movably secured to said bar.

2. A wall tormj comprising a channeled upright supportmg bar, lateral flanges on said bar, a panel havin'g'end flanges one of which engages within said channel, the upper and lower edges of said panel provided with means for engaging one of said lateral flanges whereby said panel is removably secured to said bar.

3. A wall form comprising a channeled upright supporting bar, lateral flanges on said bar, a panel having end flanges, one of which ngages within said channel, the upper and lower edges of said panel being flanged and provided with means for engaging one of said lateral flanges, whereby said panel is removably secured to said bar.

4. A wall form comprising a channeled upright supporting bar, lateral flanges on said bar, a panel having end flanges one oi which engages withinsaid channel, the upper ed e of said panel being flangedand provided with means for engaging one of said lateral flanges whereby said panel is removably secured to said bar. r

5. A" wall form comprising a channeled upright supporting bar, lateral flanges thereon, a panel having end flanges one of which engages within said channel, the 1 n lower edge or said panel being flanged and provided with means forlengaging one of said lateral flanges whereby said panel is removably secured to said bar.

6. A wall form comprising a channeled upright supporting bar, lateral flanges there on, a panel having its ends channeled for engaging within said first mentioned. channel, the'top and bottom edges of said panel being flanged for engagement with said lateral flanges whereby said panel is removably secured to said bar.

7 A wall form comprising an upright supporting bar, a panel having .means on its ends for engagement with said bar, the top and bottom edges of said panel. being flanged, and the-ends of said flanges being provided with means for engaging said bar whereby said panel is removablysecured to said bar. I

8. A wall form comprising an upright supporting bar, a panel having means on its ends for engagement with said bar, the top and bottom edges of said panel being flanged and the ends of said flanges being recessed between the edges or said flanges and said panel to provide means for removable engagement with said bar.

9. A panel for wall forms comprising a one piece plate provided at its ends with channel flanges and at its top and bottom edges with lateral flanges, said lateral flanges being recessed at their ends between the edges of said flanges and said plate to form an attaching and guiding means.

10. A wall form comprising an upright channeled supporting bar, a panel having channel flanges on, its ends for engagement with said bar, the top and bottom edges of said panel being flanged and the ends of said flanges being cut away adjacent said panel to'torm an attaching and guiding recess be-- 11. A wall form comprising an upright supporting bar, a panel having one end removably engaged with s l bar and theopposite end flanged for interlocking engagement with a second panel mounted adjacent and at an angle thereto.

12. A wall form comprising a pair of upright supporting bars, spaced apart tacing at an angle to each other, panels each having one end removably engaged with its adjacent bar and the opposite ends provided with interlocking flanges.

13. A wall form comprising a pair of spaced upri ht supporting bars facing at an angle to each other, panels engageable at one end with said bars, the opposite end of one of said panels being provided with a single central flange overlapping the end of the adjacent panel and the other panel having two spaced flanges overlapping the first panel on either side of said central flange.

14. Wall form corner panels comprising two plates disposed at an angle to each other, the outer ends of said plates provlded with channel flanges and the adjacent ends of said plates having interlocking flanges.

15. Wall form corner panels comprising two plates disposed at an angle to each other, the outer ends of said plates provided with channel flanges and the adjacent ends of said plates having interlocking flanges, said flanges comprising a large central flange on one plate and two spaced flanges on the other plate for engagement on either side of said central flange.

16. all term corner panels comprising two plates disposed at an angle to each other, the (inter ends of said plates provided with channel flanges and the adjacent ends or" said plates having interlocking flanges, said flanges comprising a large central flange on one plate and two spaced flanges on the other plate for engagement on either side of said central flange, said plates also having top and bottom supporting flanges.

17. A wall form comprising two rows of spaced parallel upright supporting bars, the bars in each row being directly opposite each other, tie rods for connecting the oppos ing bars comprising flat strips provided with notched ends, and key slots in said bars for receiving said notched ends.

18. A wail form comprising two rows of spaced parallel upright supporting bars, the

bars in each row being directly opposite each other, inwardly facing channels in said bars, panels having flanges engaging within said channels, key slots in said bars, tie rods comprising flat strips provided with notched ber.

ends engaging in said key slots, the adjacent flanges of said panels within said channels locking said tie rods in vertical position.

19. A wall form 'con iprising upright sup portinghars, panels supported thereby, each of said bars provided with a key slot for receiving a removable one piece brace rod, one integral end'of said rod being reduced and extending at right angles to the body of said rod, for engagement within said key slot.

20. A, wall form comprising upright supporting bars, panels supported thereby, each or" said bars provided with a key slot for receiving aremovable brace rod, one end of said rod being reduced and extending at right angles to the body of said rod, for engagement within said key slot, said rod comprising two sections adjustable lengthwise with respect to each other.

21. A wall form compr sing upright supporting bars, panels supported thereby, each of said bars provided with a key slot for receiving a removable brace rod, one end of said rod being reduced and extending at right angles to the body of said rod, for engagement within said key slot, said rod comprising two channeled sections adjustable lengthwise with respect to each other, and means for locking said sections in adjusted position.

22. A wall form comprising upright supporting bars, panels supported thereby, each of said bars provided with a key slot for receiving a removable brace rod, one end of said rod being reduced and extending at right angles to the body of said rod, for engagement within said key slot, said rod comprising two channeled sections adjustable lengthwise with respect to each other, and means for locking said sections in adjusted position, the lower end of the rod being provided with an angular attaching foot.

23. A wall form comprising upright supporting bars, panels supported thereby, each of said bars provided with a key slot for receiving a removable brace rod, one end of said rod being reduced and extending at right angles to the body of said rod, for engagement within said key slot, said rod comprising two channeled sections adjustable lengthwise with respect to each other, and means for locking said sections in adjusted position, the lower end of the rod being provided with an angular attaching foot, having a fastener recivlng opening therein.

A wall form comprising upright supporting bars, panels removably supported thereby, each of said bars provided with key slots for receiving.hracemembers, an angular brace member and a horizontal brace member each having one end engaged within said key slots, and a second upright member spaced from said bars for supporting the opposite end of said horizontal brace mem- 25. A Wall form comprising upright supporting bars, removable panels supported thereby, a slot in the outer face of each of said bars a one piece horizontal brace member provided at one end with an integral twisted hook portion for engagement Within said slot, and supporting means for the outer end of said member.

26. Wall for m cor'nprisingia base up right supporting bars resting on said base brace means for said bars rows of removable panels supported by said bars, the top row of said panels extending'above the upper end 

